Skylight lift



A. G. PITZ AND 0. X. SAUR.

SKYLIGHT LIFT.

APPLICATION mso ocT. 22, 192|.

1 943253571, n Emma oet. 17, w22.

A TTORNEYS.

Patented @et 17, 1922.,

ADOLPH G. PITZ AND OTTO X. SAUR, OF BRIDGEPORT, CONNECTICUT, ASSIG'NGRS TO :PARK CITY CORNICE VJORKS, INCORPOB/LTED, F BRIDGFJPORT, CONNECTICUT, A.

CORPORATL'ON 0F CDNNECTICUT.

SKYLG-HT LIFT.

Application led Qctober 22, 1921. Serial No. 509,503.

To all whom t may concern:

Be it known that we, ADOLPH G. Frrz and Or'ro X. SAUR, citizens of the United States, residing at Bridgeport, county of Fairfield, State of Connecticut, have invented an Improvement in Skylight Lifts, of which the following is a specification.

This invention relates` to lifts for skylights, or the like, and has for an object to provide an improved device for raising, lowering and holding in any desired position a hinged skylight, trap door, or similar closure, (hereinafter, for convenience and brevity of description, referred to as a skylight) which device may be easily operated and which will securely hold the skylight in the position into which it is adjusted.

It is a further object of the invention to provide a device of this character which is simple in construction and in which the parts may be assembled without the use of any bolts, screws,` cotter pins, or the like, and which, when in operative position, cannot beidisassembled and sois practically burglar proof.

With the foregoing and other objects in View, we have devised the novel skylight lift, illustrated in the accompanying drawing, in which: i

Fig. 1 is a section through a skylight showing in side elevation our improved lifter applied thereto. f

Fig. 2 is an enlarged sectional view taken substantially on line 2-'2'of Fig. 3.

Fig. 3 is a top plan view of our improved lifter.

Fig. 4 is a perspective view of the rocker. Fig. 5 is a perspective view of the bracket, and

Fig. 6 is a fragmentary kfront elevation showing the method of removing the rocker from the bracket.

The roof is represented by the numeral 10- provided with an opening surrounded by a hatch or box 11 toone side of which is hinged at 12 a skylight 13. To the under side of the skylight is secured a bracket 14 having spaced ears 15 between which is pivoted, by means of av bolt 14', one end of a lifting means, preferably a screw 16.

Permanently mounted below the skylight, in the construction shown, secured to a side wall of the hatch by means of screws 17, is a bracket 18. This bracket has a base 1.9

provided with openings 2O for the screws 17 and has two spaced arms 21, one of which has an opening 22 therethrough forming a bearing and the other of which has an open recess 23 alsoV forming a bearing, this recess being open preferably at the top thereof.

A rocker 24 is provided with trunnions 25 on opposite sides thereof, these trunnions projecting from bosses 26 formed integral with the body of the rocker, one of these bosses being chamfered -at'27 to facilitate insertion and removal of the rocker to and from the bracket in a manner presently to be described. Extending through the body of the rocker is an opening 28 forming a guide for the screw 16, the axis of this opening preferably intersecting the axis of the trunnion. The upper side of the body of the rocker is provided with a flat surface 29 providing a rest for the ring 30 of the ball-bearing 31, the opposite ring 32 of the ball-bearing forming a seat for the flanged pulley 33, this pulley being provided with a central opening therethrough having threaded engagement with the screw 16. The rocker 24 is provided with an arm 34 extending forwardly from the body thereof, provided with a lug 35 extending over the edge of one of the flanges of the pulley, preferably the lower flange 33', as shown in Fig. 2. 0n opposite sides of this lug are arms 36 carrying, at the free ends thereof, guides 37 for a flexible operating means for the pulley, preferably a chain 38. rlhe lug 35coacts with the lower flange of the pulley to prevent withdrawal of the pulley and the screwl from the rocker by lifting in the skylight.y

rfhe bearings in the bracket 18 and the trunnions on the rocker 24 are so proportioned that'by tilting the screw and rocker, as shown in Fig. 6, one trunnion may be inserted in thepbearing 22 while in this posi tion, and then the other trunnion inserted in the bearing k23 bringing the screw to an upright position. The screw may now be connected to the skylight and the bracket 18 permanently secured in place. As the only way the rocker may be removed from the bracket is by tilting the same substantially as shown in Fig. 6, it will be obvious that lifting on the skylight will not remove the rocker from the bracket, it being held by the arm carrying the bearing 22. Also the pulley and the screw cannot be removed from the rocker, as the screw is guided in the opening 28 which will prevent sidewise movement thereof, and so the flange 33 of the pulley cannotbe lifted past the lug 35 on the rocker. rlhis renders the lift practically burglar proof.

It will be apparent from an inspection of the drawing that the device is very simple in construction, comprising few parts and may, therefore, be made rigid in construction and is not liable to be easily gotten out of order. Another important feature of the device is that the elements are rigidly secured together without the use of any bolts, screws, cotters, or the like, the only bolt employed being that used to secure the end of the screw 16 to the skylight. There are, therefore, obviously no bolts or screws which may be loosened by an unauthorized person to allow disassembling of the same by lifting on the skylight. Furthermore, as the pulley operates directly on the screw and as the pulley and the guides for the operating` means therefor are mounted on the rocker so as to turn therewith, there is no chance for a cramping action in operation, and the device is always easily operated in any position of the skylight. It will also rigidly secure the same in any position to which it may be adjusted.

Having thus set forth the nature of our invention, what we claim is:

1. The combination with a hinged closure, of means connected therewith for lifting the same, a stationary one piece bracket, a rocker pivoted in the bracket, and adapted for removal therefrom while the bracket is in position, a flanged pulley coacting with the lifting means and carried by the rocker, and means von the rocker coacting with a flange of the pulley to prevent removal thereof from the rocker.

2. rlhe combination with a hinged closure, y

of means connected therewith for lifting the same, a single stationary bracket having spaced arms, a rocker pivoted in said arms and adapted for removal therefrom while the bracket is in position, a flanged pulley mounted on the rocker and coacting with said lifting means, a lug on the rocker projecting over a flange of they pulley to prevent removal of the same, and means for operating the pulley.

3. The combination with a hinged closure, of means connected therewith for lifting the same, a single stationary bracket having spaced arms one of-which has an opening therethrough for a bearing and theother an open sided recess also forming a bearing, a rocker having trunnions in said bearings, and operating means for said lifting means mounted' and secured on the rocker.

4L. The combination with a hinged closure,

of means kconnected therewith for lifting the same, a stationary bracket having spaced arms one of which has an opening there through for a bearing and the other an open sided recess also forming a bearing, a rocker having trunnions in said bearings, a flanged pulley mounted on said rocker and coasting with said lifting means, and meanson the rocker coacting with a flange of the same for preventing removal thereof.

5. The combination with a hinged closure, of means connected therewith for lifting the same comprising a screw, a stationary bracket having spaced arms one of which has an opening therethrough for a bearing and the other an open sided recess also forming a bearing, a rockery having trunnions in said bearings, a flanged' pulley mounted on said rocker and having threaded engagement with said screw, a lug on the rocker extending over a fiange on the pulley to prevent removal of the same, and flexible means for operating the pulley.

6. The combination with a hinged closure, of means connected therewith for lifting the same comprising a screw, a stationary bracket provided with spaced arms having bearings one of which is open at one side and the other closed, a rocker having trunnions in said bearings and provided with guiding means for said screw, a flanged pulley mounted on said rocker and having threaded engagement with said screw, a lug on the rocker coacting with a flange of the pulley to prevent removal of the same, and a flexible means for operating the pulley'.

7. The combination with a hinged closure, i

of means connected therewith for lifting the same comprising a screw, a stationary bracket, a rocker fulcrumed in saidv bracket and having a body portion providedwith an opening lthrough which the screw extends and whereby it is guided, `a anged pulley mounted on one side Yof. the body portion and having threaded engagement with the screw, means on the rocker coacting with a flange of the pulley to prevent removal of the screw from the opening, and means for operating the pulley. Y

S. The combination with a hinged closure, of means connected therewith for lifting the same comprising a screw, a stationary bracket, a rocker pivoted in the bracket and `having a body portion provided withr an opening extending transversely of the axis of the pivots and providing a guide for the of means connected therewith for lifting.

the same Comprising a screw, a stationary bracket having spaced arms o-ne of Whioh has an opening therethrough for a bearing and the other an open sided recess also forming a bearing, a rocker having trunnions in said bearings and so arranged as to be removable therefrom only by tipping the axis of the trunnions, said rocker having a body portion provided with an opening extendin transversely of the axis of the trunnions an providing a guide for the screw, a flanged pulley having threaded engagement with the screw and mounted at one side of said body portion, a lug on the rocker extend ing over a flange of the pulley to prevent 15 ADOLPH G. Prrz. o'rTo X. SAUR. 

